JSFiddle - React, Tailwind, and code Playground

by Plippie Plop

JavaScript

// open your console!

var x="";
var x1;
var x2="d";
var x3=0;


if(!x && x!== 0) {
    console.log('niks');
}else{
    console.log('aap');
}

if(!x1 && x1!== 0) {
    console.log('niks');
}else{
    console.log('aap');
}

if(!x2 && x2!== 0) {
    console.log('niks');
}else{
    console.log('aap');
}

if(!x3 && x3!== 0) {
    console.log('niks');
}else{
    console.log('aap');
}